Hi there! There's a known issue with Windows security where some files (such as hotspot indictor SVG images) can't be loaded by a web browser if the files are located on an external hard-drive, e.g USB connected hard-drive or a network drive.

If you think this may be the case, please try publishing your SpotEditor project to your main hard-drive (e.g C drive) which you can do by changing the output path on the New Project form.